What caused Seattle crane collapse?
L&I’s nearly six-month investigation determined that the crane collapse was caused by the companies not following the manufacturer’s procedures for dismantling the structure, which included prematurely removing nearly all of the pins and sleeves that helped hold the crane together.
Who died in Seattle crane accident?
The King County Medical Examiner’s Office ruled that the deaths on Saturday of Sarah Wong , 19, Alan Justad, 71, Andrew Yoder, 31, and Travis Corbet, 33, were accidents.
Do cranes ever fall?
The fact is, though, that deadly crane crashes are far too common. Some of the largest crane collapses on record have the most devastating effects in big cities, such as a 2008 New York accident that killed seven people and destroyed buildings when a 200-foot-tall crane collapsed.
Where did cranes collapse?
A crawler crane collapsed over the Masjid al-Haram in Mecca, Saudi Arabia, around 05:10 p.m. on 11 September 2015, killing 111 people and injuring 394 others.
How do Cranes not fall over?
Why Don’t Tower Cranes Fall Over ? This is mostly down to the concrete base, which is massive and needs to be poured weeks before the crane arrives. The triangulated cross-member structure of the mast gives it more stability and prevents bending. Plus, it’s anchored and bolted to the ground.
Are tower cranes dangerous?
The issue: Towering cranes used on construction sites to lift and transport hefty loads can be extremely dangerous and often lethal when they fall over, or when parts or the entire crane collapses due to some structural failure.
What are the main causes of crane accidents?
OSHA’s analysis of crane accidents identified the major causes of crane accidents as: boom or crane contact with energized power lines (nearly 45% of the cases) under the hook lifting device. overturned cranes. dropped loads. boom collapse. crushing by the counter weight. outrigger use, falls and rigging failures.
What is the most dangerous factor among crane accidents?
Crane accident fatalities occur from a variety of causes. The most common cause of fatalities is workers or bystanders who are struck by an object that falls from the cranes. Other causes include being run over by a crane , falling from a crane , and electrocution.
How many cranes collapse a year?
From 2011 to 2017, the Census of Fatal Occupational Injuries (CFOI) reported 297 total crane-related deaths, an average of 42 per year over this 7- year period.
How old do you have to be to operate a crane?
18 years old
Where did the crane fall in East London?
The crane that collapsed was being used by Swan Housing Association and NU living. A spokeswoman for the housing association and NU living said: “Swan Housing Association/NU living is aware of an incident that occurred at our Watts Grove development site in Tower Hamlets, east London , this afternoon.